refactor: transport agnostic examples (#131)

examples/discovery-userprofile/server.php

@@ -0,0 +1,71 @@
+#!/usr/bin/env php
+<?php
+
+/*
+ * This file is part of the official PHP MCP SDK.
+ *
+ * A collaboration between Symfony and the PHP Foundation.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+require_once dirname(__DIR__).'/bootstrap.php';
+chdir(__DIR__);
+
+use Mcp\Server;
+use Mcp\Server\Session\FileSessionStore;
+
+$server = Server::builder()
+    ->setServerInfo('HTTP User Profiles', '1.0.0')
+    ->setLogger(logger())
+    ->setContainer(container())
+    ->setSession(new FileSessionStore(__DIR__.'/sessions'))
+    ->setDiscovery(__DIR__)
+    ->addTool(
+        function (float $a, float $b, string $operation = 'add'): array {
+            $result = match ($operation) {
+                'add' => $a + $b,
+                'subtract' => $a - $b,
+                'multiply' => $a * $b,
+                'divide' => 0 != $b ? $a / $b : throw new InvalidArgumentException('Cannot divide by zero'),
+                default => throw new InvalidArgumentException("Unknown operation: {$operation}"),
+            };
+
+            return [
+                'operation' => $operation,
+                'operands' => [$a, $b],
+                'result' => $result,
+            ];
+        },
+        name: 'calculator',
+        description: 'Perform basic math operations (add, subtract, multiply, divide)'
+    )
+    ->addResource(
+        function (): array {
+            $memoryUsage = memory_get_usage(true);
+            $memoryPeak = memory_get_peak_usage(true);
+            $uptime = time() - ($_SERVER['REQUEST_TIME_FLOAT'] ?? time());
+            $serverSoftware = $_SERVER['SERVER_SOFTWARE'] ?? 'CLI';
+
+            return [
+                'server_time' => date('Y-m-d H:i:s'),
+                'uptime_seconds' => $uptime,
+                'memory_usage_mb' => round($memoryUsage / 1024 / 1024, 2),
+                'memory_peak_mb' => round($memoryPeak / 1024 / 1024, 2),
+                'php_version' => \PHP_VERSION,
+                'server_software' => $serverSoftware,
+                'operating_system' => \PHP_OS_FAMILY,
+                'status' => 'healthy',
+            ];
+        },
+        uri: 'system://status',
+        name: 'system_status',
+        description: 'Current system status and runtime information',
+        mimeType: 'application/json'
+    )
+    ->build();
+
+$response = $server->run(transport());
+
+shutdown($response);